They are usually delivered with several basic configurations for several types of engines to help you start tuning it. The advantage of such systems is that most can be used on any type of engine. Standalone systems are made to replace OEM ECUs when they can’t be reprogrammed. Other ECU tuning methods available Standalone systems To take advantage of more aggressive cams and want to push the rev You will need to program your ECU if you change your cylinder head However, if you want a very high output system, it is advisable to have the control unit reprogrammed, as the modifications to be made are quite similar to those of turbocharged systems. Some nitrous oxide kits come with the necessary parts to increase the amount of fuel sent to the engine without having to reprogram the ECU. More aggressive model without reprogramming the ECU and get away with Why it’s often possible to replace the camshaft with a slightly

Modification as much as when supercharging an N/A vehicle. The ignition timing and atmosphericĬorrection factors will not be affected by this particular In most cases, it is possible to keep most sensors and OEM Produced by compression, the ignition time delay will also need to beĪdjusted to avoid early detonation. The new air/fuel mixture will be denser and more heat will be Nonetheless, it will be necessary to change the ignition time. Sent by the new injectors will be too large for the same injection Original ECU was calibrated for smaller injectors, the amount of fuel It’sĪlso required to change the opening time of the new injectors.

Idle, start when cold, and produce enough power in hot weather. The engine will have a hard time to run at Which the injector opens its valve.) This greater latency has theĮffect of screwing up all the corrections originally programmed for Larger injectors cause higher latency (the speed at When installing a turbo or supercharger on a naturally-aspiratedĮngine, it is not unusual to have to replace the original injectorsįor bigger ones. Here are some classic modification examples and the tuning required for the control unit to be compatible with the new setup. But for this to be true, the ECU must be reprogrammed so that it sends the right amount of fuel depending on the amount of air that the new modification brings. More oxygen mixed with more fuel results in more power. For example, changing an intake manifold on a turbocharged engine could have more impact than on an atmospheric engine. It depends on the type of modifications and the type of engine. What should be changed in an ECU based on modifications made to the engine?

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